2021 AZERBAIJAN GP

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XcraigX
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#346

Post by XcraigX »

Bottom post of the previous page:

Ruslan wrote: 2 years ago
Yea, I am not sure what the real story is. I am leaning towards tire failure due to extended runs on hard tires, but not sure. I gather the options are:

1. Tire failure due to long runs.
2. Rubbing the walls (mysteriously with only with heavily worn left rear tires).
3. Running over debris (mysteriously with only heavily worn left rear tires...including Hamilton's)
4. A combination of the above (not all left rear tire deflations may have been due to the same cause).

Now, I guess it is possible that a piece of debris was in a location that would only cut the left rear tire.....and all three drivers ran over over the same piece of debris....

Anything I am missing?
Running over kerbing with the inside edge (all the way over to the center edge of the tire).
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#347

Post by Everso Biggyballies »

Ruslan wrote: 2 years ago
White six wrote: 2 years ago Tyre failures caused by repeated stress on a particular kerb perhaps
Maybe....but why all the left rear tire failures and how does it take all the stress compared to the front tires?
Thats the strange thing and something that points to debris being more the cause..... the left rear is the least stressed of all 4 at Baku. The rear right is the most stressed according to the teams (and Pirelli), followed by front right and front left.
The left rear on Lewis's car apparently had a 6-7cm cut in it when they stopped the race after the Max crash. Being "Lucky Lewis" of course his tyre never failed but clearly was on the point of failure.

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#348

Post by Ruslan »

XcraigX wrote: 2 years ago
Ruslan wrote: 2 years ago
Yea, I am not sure what the real story is. I am leaning towards tire failure due to extended runs on hard tires, but not sure. I gather the options are:

1. Tire failure due to long runs.
2. Rubbing the walls (mysteriously with only with heavily worn left rear tires).
3. Running over debris (mysteriously with only heavily worn left rear tires...including Hamilton's)
4. A combination of the above (not all left rear tire deflations may have been due to the same cause).

Now, I guess it is possible that a piece of debris was in a location that would only cut the left rear tire.....and all three drivers ran over over the same piece of debris....

Anything I am missing?
Running over kerbing with the inside edge (all the way over to the center edge of the tire).
OK, revised list:

1. Tire failure due to long runs.
2. Rubbing the walls (mysteriously with only with heavily worn left rear tires).
3. Running over curbs (either rubbing inside edge of tire or from pounding on the left rear).
4. Running over debris (mysteriously with only heavily worn left rear tires...including Hamilton's)
5. A combination of the above (not all left rear tire deflations may have been due to the same cause).
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#349

Post by Ruslan »

Everso Biggyballies wrote: 2 years ago
Ruslan wrote: 2 years ago
White six wrote: 2 years ago Tyre failures caused by repeated stress on a particular kerb perhaps
Maybe....but why all the left rear tire failures and how does it take all the stress compared to the front tires?
Thats the strange thing and something that points to debris being more the cause..... the left rear is the least stressed of all 4 at Baku. The rear right is the most stressed according to the teams (and Pirelli), followed by front right and front left.
The left rear on Lewis's car apparently had a 6-7cm cut in it when they stopped the race after the Max crash. Being "Lucky Lewis" of course his tyre never failed but clearly was on the point of failure.
Well, I don't think it could be "random debris" as three left rear tires were cut. It could be something in place on the track where left rear tires ran over.
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#350

Post by DoubleFart »

Reprofiled Turn 8 kerb?
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#351

Post by White six »

DoubleFart wrote: 2 years ago Reprofiled Turn 8 kerb?
Possible, they're be a time gain for getting the left rear super close to the Armco there. We didn't see a single person hit that barrier all weekend though, could be lack of a camera .

The inside of 15 another potential culprit, one of the most difficult corners on the entire calendar
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#352

Post by John »

Mawerick wrote: 2 years ago If I remember correctly, it was the inside wall of the tyre (at least Stroll's) that had failed, not the outside wall. I don't think the inside would hit any barriers during a race, though it might be damaged by curbs.
I wouldn't hold that beyond Stroll.
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#353

Post by theracer120 »

On a lighter note here's Mark Webber screaming:
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#354

Post by Everso Biggyballies »

:rofl: :rofl:

I must admit it was a bit like that in front of my tv as well!

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#355

Post by White six »

It was like senna dying in our house. Cheered up a bit later!
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#356

Post by MonteCristo »

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#357

Post by Star »

Oh I wanted to scream and shout too, I couldn't as my daughter was working on an urgent piece of work. Believe me, inside I was cheering like mad ;)

The other thing that amuses me is when the car lets him down, Max always gives it a good kick before he walks away. He just has to show his frustration to the world, not that kicking does any good, but he always does it anyway.
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#358

Post by P. Cornelius Scipio »

Ruslan wrote: 2 years ago
P. Cornelius Scipio wrote: 2 years ago
Ruslan wrote: 2 years ago
White six wrote: 2 years ago
Ruslan wrote: 2 years ago
White six wrote: 2 years ago
Ruslan wrote: 2 years ago

So he turned in on during the warm-up lap and forget to turn it back off?
He knocked it on when Perez was squeezing him, after the start

Doh :rofl:
Sorry, need another cup of coffee.

So, how did he manage to hit it on the upshift? Was this an ergonomic issue that was bound to happen at some point?
Doddery owld fecker past his best, hands flailing around when under some pressure.

Would be my interpretation :)
Well, I am kind of curious where that button was. Anyone got a cockpit picture?
magic button should be top right one


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So it is the button on the back of the shifter or the one just above the shifter?
from what I've seen on it.motorsport.com it should be the one above the shifter
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#359

Post by P. Cornelius Scipio »

Ruslan wrote: 2 years ago
XcraigX wrote: 2 years ago
Ruslan wrote: 2 years ago
Yea, I am not sure what the real story is. I am leaning towards tire failure due to extended runs on hard tires, but not sure. I gather the options are:

1. Tire failure due to long runs.
2. Rubbing the walls (mysteriously with only with heavily worn left rear tires).
3. Running over debris (mysteriously with only heavily worn left rear tires...including Hamilton's)
4. A combination of the above (not all left rear tire deflations may have been due to the same cause).

Now, I guess it is possible that a piece of debris was in a location that would only cut the left rear tire.....and all three drivers ran over over the same piece of debris....

Anything I am missing?
Running over kerbing with the inside edge (all the way over to the center edge of the tire).
OK, revised list:

1. Tire failure due to long runs.
2. Rubbing the walls (mysteriously with only with heavily worn left rear tires).
3. Running over curbs (either rubbing inside edge of tire or from pounding on the left rear).
4. Running over debris (mysteriously with only heavily worn left rear tires...including Hamilton's)
5. A combination of the above (not all left rear tire deflations may have been due to the same cause).
I'd go for option number 5
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#360

Post by PTRACER »

theracer120 wrote: 2 years ago On a lighter note here's Mark Webber screaming:
:haha: :haha:

That's the same noise I make when I realise there's a large spider in my room.
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#361

Post by Ruslan »

Comment from a tire guy: https://www.grandprix.com/news/f1-tyre- ... story.html

Summation: "a problem with the carcass." He does not buy the debris excuse.
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